100 POINTS
A stainless steel patio heater is a square pyramid. The length of one side of the base is 21.2 in. The slant height of the pyramid is 90.9 in. What is the height of the pyramid?

Use b^2+b^2=c^2
A=21.2
B=90.9

Find csc x if sin x + cot x cos x =√3 a. 9 b. 3 c. √(3)/2 d. √(3)

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103